Home / 128,095.89-176,381.01-116,081.07

Finding the Fourth Proportional to 128,095.89, 176,381.01 and 116,081.07

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Solution

The fourth proportional to 128,095.89, 176,381.01 and 116,081.07 is: 159,837.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,095.89 : 176,381.01 = 116,081.07 : x
  2. Step 2: Convert to fraction form
    128,095.89/176,381.01 = 116,081.07/x
  3. Step 3: Cross multiply
    128,095.89x = 176,381.01 × 116,081.07
  4. Step 4: Simplify right side
    128,095.89x = 20,474,496,368.48
  5. Step 5: Solve for x
    x = 20,474,496,368.48/128,095.89
  6. Step 6: Final answer
    x = 159,837.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.